Answer: the Indus Valley was believed to be collapse because of climate change
Explanation:
Experts believe that the dying of the saraswati River cause this to collapse leading to its disappearance
Answer:
An election for president of the United States happens every four years on the first Tuesday after the first Monday in November. The next presidential election will be November 3, 2020.
Explanation:
It was designed to stop monopolies or big business.
"The Truman Doctrine was an American foreign policy whose stated purpose was to counter Soviet geopolitical expansion during the Cold War."